Window-screen.



E. 'H. LUNKENf WINDOW SCREEN.

APPLICATION FILED NOV.1'I; 1910.

"9 9,71 Patented Apr. 18,1911.

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E.H.LUNKEN. WINDOW SOREPN.

APPLIOATION FILED NOV.17, 1910.

' Patented Apr. 18, 1911.

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EDMUND I-I. LUNKEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE LUNKENI-IEIMER COMPANY, A CORPORATION OF OHIO.

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Specification of Letters Patent.

Patented Apr. 18, 19t1.

To all whom it may concern:

Be it known that I, EDMUND H. LUNKEN, a citizen of the United States, residing at Chicago, Illinois, have invented certain new and useful Improvements in Window- Screens, of which the following is a specification.

My present invention relates to improvements in window screens.

One of the objects is to provide a screen which is specially adapted for use in connection with metallic or fire proof windows of the type which normally slide vertically, but are capable of being swung upon horizontal pivots for cleaning purposes.

Another object is to provide a construction in which the screen frame shall be concealed from view from the inside of the buildlng, only the Wire mesh of the screen being visible.

Other objects are to provide a screen improved as to various features of construction with a view to producing an article of simplicity, durability, and one convenient to manipulate and of neat appearance from the exterior.

The invention includes the novel features of construction hereinafter described and particularly set forth in the appended claims.

An embodiment of my invention is illustrated in the accompanying drawings, in

which Figure l is a front elevation of a window frame and screen viewed from the outside; Fig. 2 is a transverse vertical section; Fig. 3 is a horizontal section on line MM looking up; lower screen being raised in position for reversing window. Fig. 4 is a perspective view also from the outside showing the lower screen member raised and the hinged guides swung outward; and Fig. 5 is an enlarged sectional detail through one of the stationary guides, at line MM looking up.

Referring by reference characters to this drawing, the numeral 1 designates the window frame, the sides of which are provided with the finishing or cover plates 2 in which the sashes (not shown). are mounted to slide vertically, and also swing upon horizontal pivots as shown, for example, in Letters Patent Nos. 903,058 and 957,693, dated Nov. 3, 1908, and May 10, 1910, respectively.

The upper screen is indicated at 3 and the lower at 4, said upper screen being carried by guide strips 5 which are hinged at their upper ends to the top cross member 6 of the window frame by means of hinges 7. The upper screen 3 is secured to the outer face of the hinged guide strips, preferably by means of bolts or rivets, as indicated at 8, and the guide strips are extended below the lower edges of the screen 3, as indicated clearly at 5 in Figs. 1 and 4. Other and stationary guide rails 9 are provided at the sides of the lower portion of the window, which are designed to form continuations of the upper guide rails 5 when the latter are in their normal and vertical position, and the lower screen 4 is mounted to slide vertically in the channel formed by the alining guides 5 and 9. Owing to the break between the hinged and stationary guide rails being be low the lower edge of the upper screen, it will be seen that when the lower screen is 'in its normal position it bridges the breaks 10 carried by the lower edge of the upper' screen at which time guide rails 5 may be swung outward into the position shown in perspective in Fig. 4, carrying with them both upper and lower screens, as shown.

It will be observed that the guide bars or strips 5 and 9 are carried by the flange 1 of the cover plate, and the frame members 3 and 4 of the screens are completely behind the inwardly extending portions l of the cover plates so that they are not visible from the inside of the room. Thus when viewed from the inside, only the wire screemng is visible, which adds greatly to its attract1veness.

In order to provide convenient means for securing the guide strips to the cover plates without having the securing means interfere with the sliding movement of the screen, I form these guide strips of hollow sheet metal or channel iron, thus providing a space 9 between the walls for the reception of the heads of the screws or bolts 11 which are used as the securing means, these screws being inserted through openings 9* in the inner 'the screen.

It is evident that where only a lower screen is desirable, the screen cloth in the upper or swinging part of the device could be omitted and otherwise the device would operate in the same manner (as regards the operation of the lower screen), to permit the reversal of the sashes for cleansing.

Having thus described my invention what I claim is:

1. The combination with a window frame, of a screen member and connected guides hinged to the window at one end, and a second screen member slidable within said guides.

2. The combination with a window frame, of a-pair of guides and connected screen member hinged to said window at the upper end thereof, said guides extending beyond said screen member, stationary guides carried by the window frame and alining normally with said hinged guides, and a second screen member slidable within said stationary and hinged guides, substantially as described.

3. The combination of a window frame, of a-pair of guides hinged at the top of the window, a screen member secured to the outer faces of the guides, stationary guides carried by the window frame and normally alining with said hinged guides, a second screen member mounted to slide in said hinged and stationary guides, and means for locking the second screen member in elevated position Within the hinged guides when desired, substantially as described.

4. The combination with a window frame, of a pair of guides and an attached screen member hinged to the top of the window frame, a pair ofstationary guides secured to the window frame and normally in alinement with said hinged guides, a second screen member movably held within said stationary and hinged guides, the line of break between said stationary and hinged guides being below the upper edge of the second screen member when the latter is in its normal position whereby the hinged guides are automatically locked against swinging movement, substantially as described. j

5. The combination with a window frame, of an upper hinged part carried upon the outside thereof, and a lower screen member slidable on said upper part so as to be raised and swung outward therewith, said Window frame having a portion projecting inwardly and concealing the hinged part and screen frame from view from the inside of the room, substantially as described.

6. The combination with a window frame, of guides hinged to the window frame at the top thereof, and a screen slidably carried by said guides, substantially as described.

7. A guide rail for a window screen composed of channel iron, having the hollow portion at the base of the channel for the re- 1 ception of securing devices.

8. A guide rail for a window screen consisting of sheet metal having double side webs to engage the opposite faces of the screen, and parallel spaced connecting webs, one of said webs being suitably perforated for the passage of a screw or like securing device, and the other for the passage of the head of the screw and an operating tool, substantially as described.

In testimony whereof, I affix my signature in presence of two witnesses.

EDMUND H. LUNKEN.

Witnesses HARRY WV. STANNARD, E. G. CASE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, 1). C. 

